Fan fault early warning method and system capable of positioning specific equipment

A technology for locating faults and fault warnings, which is applied to mechanical equipment, machines/engines, non-variable pumps, etc., to achieve low requirements, improve safe and stable operation, and reduce early warning costs

Pending Publication Date: 2022-07-12
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no effective fault warning method and system for wind turbines running in parallel, which can specifically locate which equipment is faulty while early warning of wind turbine faults

Method used

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  • Fan fault early warning method and system capable of positioning specific equipment
  • Fan fault early warning method and system capable of positioning specific equipment
  • Fan fault early warning method and system capable of positioning specific equipment

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Embodiment Construction

[0037]The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it is to be understood that the terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, The existence or addition of a whole, step, operation, element, component, and / or a collection thereof.

[0039] It should also be understood that the terminology used in th...

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Abstract

The invention discloses a fan fault early warning method and system capable of positioning specific equipment. The method comprises the following steps that the current I1 and I2 and the opening O1 and O2 of two fans running in parallel are obtained; calculating a relative current difference coefficient epsilon i and a relative opening difference coefficient epsilon o; according to the size relation between the coefficient epsilon i and the Ic1, the Ic2, the Ic3 and the Ic4 and the size relation between the epsilon o and the Oc1, the Oc2, the Oc3 and the Oc4, the first-level early warning level of the fan is determined; calculating the current opening proportionality coefficients r1 and r2 of the two fans according to the current I1 and I2 and the opening O1 and O2 of the two fans; obtaining a standard current opening degree proportionality coefficient rref under historical similar working conditions; calculating deviation degrees d1 and d2 of the current opening proportionality coefficients of the two fans according to the current opening proportionality coefficients r1 and r2 of the two fans and the standard current opening proportionality coefficient rref; according to the deviation degrees d1 and d2 of the current opening proportionality coefficients of the two fans, the second-level early warning level of the fans is determined, and the fault fans are positioned; and specific fault equipment positioning and fan fault early warning can be realized.

Description

technical field [0001] The invention belongs to the field of fan fault diagnosis, and in particular relates to a fan fault early warning method and system capable of locating specific equipment. Background technique [0002] Fans are important auxiliary equipment of thermal power plants. Unplanned outages of thermal power units due to fan failures are not uncommon. Therefore, the reliability of fans plays a vital role in the safe and stable operation of thermal power units. Online monitoring of fan status, through real-time monitoring of status parameters such as fan current and opening, can effectively warn fan failures and improve fan operation reliability. At present, for fans running in parallel, there is no effective fault early warning method and system, which can specifically locate which equipment is faulty while early warning of fan faults. SUMMARY OF THE INVENTION [0003] In order to solve the problems existing in the prior art, the present invention provides a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCF04D27/001
Inventor 沙德生邹歆梁晏萱徐景悦陈颖高开峰
Owner HUANENG CLEAN ENERGY RES INST
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